Bed Bug

Dwellings where humans or other warm-blooded animals sleep, hiding in cracks and crevices (beds, mattresses, bed frames, furniture, walls, floorboards).

Exclusively blood of warm-blooded animals, especially humans.

Nocturnal, typically feeding at night while hosts are asleep. They are attracted to carbon dioxide and body heat. They tend to live in groups.

Risks: Bites can be itchy, leading to skin irritation and secondary infections from scratching. Can cause psychological distress (anxiety, insomnia). Not known to transmit diseases. No known benefits to humans or the ecosystem.